Jeff Matthews Posted March 6, 2018 Share Posted March 6, 2018 For you hobbyists out there, maybe you can enlighten me. Even though we have GPS, is there a cheaper component which senses an item's movement? It doesn't have to track where it is going; it just needs to detect that it is traveling. Direction doesn't matter. Quote Link to comment Share on other sites More sharing options...
JJkizak Posted March 7, 2018 Share Posted March 7, 2018 Well there is Fitbit for somebody walking. JJK Quote Link to comment Share on other sites More sharing options...
Schu Posted March 7, 2018 Share Posted March 7, 2018 Tile... People have been using it to track people without their knowledge... like women in nightclubs. 1 Quote Link to comment Share on other sites More sharing options...
Edgar Posted May 29, 2019 Share Posted May 29, 2019 There's any number of IMUs (Intertial Measurement Units) available that can do this. They have gotten very inexpensive for the cell phone market. They're not extremely accurate, but depending upon the model they will give you acceleration, velocity, and/or position, and angle or angular velocity in rotation matrix, Euler, or quaternion. For example: https://www.sparkfun.com/categories/160 1 Quote Link to comment Share on other sites More sharing options...
WillyBob Posted May 30, 2019 Share Posted May 30, 2019 yes... there are devices to detect movement. Having a senior moment... trying to remember the term for them. not what I was thinking/groping for... but these drones have 3 gyroscopes, for stabilization,on a board the size of a matchbook. And room for 4 speed controllers, and a receiver... can't see where a transmitter would be that tough. I'll remember the term. Might take a couple days, tho thnx @Edgar accelerometers[sp?] is the term.. Quote Link to comment Share on other sites More sharing options...
Edgar Posted May 30, 2019 Share Posted May 30, 2019 58 minutes ago, WillyBob said: accelerometers[sp?] is the term.. A 6DOF (degree of freedom) IMU contains accelerometers in 3 axes and gyros in 3 axes. A 9DOF IMU adds 3 axes of magnetometer. Many of the off-the-shelf IMUs also perform the arithmetic to turn accelerations into velocities and positions, and to turn angular velocities into angles. Quote Link to comment Share on other sites More sharing options...
boom3 Posted May 31, 2019 Share Posted May 31, 2019 There are accelerometers made for shipping high value items that report location, sorry I do not have a model at hand... Quote Link to comment Share on other sites More sharing options...
BigStewMan Posted June 16, 2019 Share Posted June 16, 2019 . 2 2 Quote Link to comment Share on other sites More sharing options...
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